Question

click here to access the interactive simulation. you will practice balancing chemical equations by playing an interactive game. after accessing the website, select the game box and start with level 1, followed by levels 2 and 3. the goal of these games is to have the same number of atoms on each side of the equation. in level 1, you balanced the equation n₂ + h₂ → nh₃. what number did you place in front of ammonia (nh₃)? in level 2, you balanced the equation c + h₂o → ch₄ + co₂. what number did you place in front of carbon dioxide (co₂)? in level 3, you balanced the equation nh₃ + o₂ → no₂ + h₂o. what number did you place in front of water?

Explanation:

Step1: Balance level 1 equation

The balanced equation for $N_2 + 3H_2
ightarrow2NH_3$. So the coefficient of $NH_3$ is 2.

Step2: Balance level 2 equation

The balanced equation for $2C + 2H_2O
ightarrow CH_4+CO_2$. So the coefficient of $CO_2$ is 1.

Step3: Balance level 3 equation

The balanced equation for $4NH_3 + 7O_2
ightarrow4NO_2+6H_2O$. So the coefficient of $H_2O$ is 6.

Answer:

In level 1: 2
In level 2: 1
In level 3: 6